This is what my coach says at the moment. Im currently in this state and so bad im off work as i cant stay awake more than a few hours.
You have what is known in sports science as ‘progressive glycogen
depletion’, I must have told you about this every time you have visited me
but you choose to conveniently forget.
The bottom line is you are never filling you tank because of your reluctance
to eat enough. Sometimes it’s nearly full and other times it isn’t.
When it isn’t then your system will not release energy hence you can’t
function as you should.
You have got to get more fuel in the tank on a drip feed type basis, as
little and as often as possible, otherwise you will never even see the start
of the season.
There isn’t a ‘case of over doing it’ otherwise the pros in Europe would
never even survive the first few stages of Le Tour, they just stuff calories
in like they were going out of fashion and you have got to learn to do the
same or take up a less demanding sport.
So remember that “Over training is generally nothing more than under
fuelling